# include & ltiostream & gt

Use namespace std

Boolean check (char *str)

{

& ampnbsp & ampnbsp & ampnbsp & ampnbs pint I；

& ampnbsp & ampnbsp & ampnbsp & ampnbsp for(I = 0； I & ltstrlen(str)；); i++)

& ampnbsp & ampnbsp & ampnbsp & ampnbsp & ampnbsp & ampnbsp & ampnbsp & ampnbs pif(str[I]& lt； 0 ' | | str[I]& gt；' 9' )

& ampnbsp & ampnbsp & ampnbsp & ampnbsp & ampnbsp & ampnbsp & ampnbsp & ampnbsp & ampnbsp & ampnbsp & ampnbsp & ampnbspreturn false

& nbsp & nbsp & nbsp & nbs returns true.

}

int main()

{

& ampnbsp & ampnbsp & ampnbsp & ampnbsp char str[30]；

& ampnbsp & ampnbsp & ampnbsp & ampnbsp while(CIN & gt； & gtstr)

& ampnbsp & ampnbsp & ampnbsp & ampnbsp{

& ampnbsp & ampnbsp & ampnbsp & ampnbsp & ampnbsp & ampnbsp & ampnbsp & ampnbspif ( check( str))

& ampnbsp & ampnbsp & ampnbsp & ampnbsp & ampnbsp & ampnbsp & ampnbsp & ampnbsp & ampnbsp & ampnbsp & ampnbsp & ampnbspbreak

& ampnbsp & ampnbsp & ampnbsp & ampnbsp}

& ampnbsp & ampnbsp & ampnbsp & ampnbspcout & lt& ltstr

& ampnbsp & ampnbsp & ampnbsp & ampnbs return 0；

}